前言

在实际项目中经常会将halcon的图像格式转化为bitmap的格式。例如在载入tensorflow的训练模型时，一般不支持对hobject格式的输入，包括很多程序。
所以就需要一个具有较快速度的转化方式。
本文中的转化方式，在24位彩色图中平均在15ms（4096*2160），32位彩色图18ms，8位灰度图，10ms。

1.C#程序

        /// <summary>
        /// hobject彩色图24位转bitmap
        /// </summary>
        /// <param name="ho_image"></param>
        /// <param name="res24"></param>
        public void HobjectToBitmap24(HObject ho_image, out Bitmap res24)
        {
            HTuple  type, width, height;
            //创建交错格式图像
            HOperatorSet.InterleaveChannels(ho_image, out HObject InterImage, "rgb", "match", 255);  
            //获取交错格式图像指针
            HOperatorSet.GetImagePointer1(InterImage, out HTuple Pointer, out type, out width, out height);
            IntPtr ptr = Pointer;
            res24 = new Bitmap(width / 3, height, width, PixelFormat.Format24bppRgb, ptr);  
        }
        /// <summary>
        /// hobject彩色图32位转bitmap
        /// </summary>
        /// <param name="ho_image"></param>
        /// <param name="res32"></param>
        public void HobjectToBitmap32(HObject ho_image, out Bitmap res32)
        {
            HTuple type, width, height;
            //创建交错格式图像
            HOperatorSet.InterleaveChannels(ho_image, out HObject InterImage, "argb", "match", 255);
            //获取交错格式图像指针
            HOperatorSet.GetImagePointer1(InterImage, out HTuple Pointer, out type, out width, out height);
            IntPtr ptr = Pointer;
            res32 = new Bitmap(width / 4, height, width, PixelFormat.Format32bppRgb, ptr);
        }
        /// <summary>
        /// hobject灰度8位转bitmap
        /// </summary>
        /// <param name="ho_image"></param>
        /// <param name="res8"></param>
        public void HobjectToBitmap8(HObject ho_image, out Bitmap res8)
        {
            HTuple type, width, height;
            HOperatorSet.GetImagePointer1(ho_image, out HTuple Pointer, out type, out width, out height);
            IntPtr ptr = Pointer;
            res8 = new Bitmap(width, height, width, PixelFormat.Format8bppIndexed, ptr);
            //设置灰度调色板
            ColorPalette cp = res8.Palette;
            for (int i = 0; i < 256; i++)
            {
                cp.Entries[i] = Color.FromArgb(i, i, i);
            }
            res8.Palette = cp;
        }

 
 

 
 

转载自：https://blog.csdn.net/m0_51559565/article/details/137598048